regain your senses
From Longman Dictionary of Contemporary Englishregain your sensesregain your sensesold-fashionedRECOVER/GET BETTER to stop feeling faint or slightly sick → senseExamples from the Corpusregain your senses• Doctor Robert Dexter sat forward quickly, sucking in a deep breath as he regained his senses.• Out in the fresh air, she quickly regained her senses.